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JN22-40.5/31.5 Indoor High Voltage AC Earthing Switch
JN22-40.5/31.5 Indoor High Voltage AC Earthing Switch

1.Rated voltage: 40.5kV 2.Rated current: 31.5kA 3.Mechanical life: 2000times 4.Advantageous price

Operation invironment condition:

1.Altitude: ≤1000m

2.Ambient temperature: -10°C~+40°C

3.Earthquake intensity: ≤8 degree

4.Installation in no explosives,   serious  dust  ,  corrosives and strenuous vibration  room

Major  technical index:

ItemUnit            Data              
Rated voltage kv31.5kA
Rated short-time withstand current kA40.5kv
Rated short-circurt durature s4
Rated short-circurt making current  kA50
Rated peak withstand current                                                     kA50
Interpolar center distancemm280,300,350
Rated insulting level  PF withstand voltage (one min)kv    42
  Lightning impulse withstand voltage 75
Mechanical endurancetimes 2000 

JN22-40.5/31.5 Outline dimension: 

Mounting hole dimension and quiet knife installation hole dimension:.

.

JN22-40.5/31.5 Indoor High Voltage AC Earthing Switch

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